Endless conveyer for coal mines



E. TAYLOR ENDLESS-CONVEYER FOR COAL IINES Feb. 19, 1929;

3 Sh'aets-Shaet 1 Filed Nov. 19 1927 EVE/V708 Edward Z9101:

Per. 174049 v Amrr m w Q I A m 8 Q .m K K Y "nu v w Q w\\ my g H;

Feb. 19, 1929.

E. TAYLOR ENDLESS CONVEYER FOR COAL MINES Filed Nov. 19, 1927 3 Sheets-Sheet 2 INVENTO/Z.

duani Attbme I Feb; 19, 1929. 1,702,579

E. TAYLOR ENDLESS CONVEYER FOR COAL MINES iitijjiiii JJYVENTOR. Edward T Z07:

4 Per 5 Patented Feb. 19, 1929.

UNITED STATES. PAT'ENTLOFFICE;

EDWARD TAYLOR, F FERRYHILL, ENGLAND;

. ENDLESS CONVEYER r03 coAI. MINES.

I .Application filed Iliovember 19, 1927, Serial n 234,510, and in Great Britain March. 11, 1927. 1

This invention relatesto endless conveyers as used in coal mines and other'like places, These conveyersare usually of considerable length and are supported by anumber of 5 transverse rollers or cylinders, a pulley on cylinder at one end of the conveyer around which the belt is passed being driven from a prime mover. This practice with long conveyers results in very heavy strains on the driving pulley owing to the loads supported by the median, part of the conveyer. strain can be appreciably reduced and the general efiiciencyof the conveyer improved if some or all of the conveyer supporting .rollers or cylinders are rotated positively so that the endless belt is supported by a number of live points instead upon a large number of idle rollers, and the conveyer driven at both ends.

vention which is characterized by the provision upon some or all of the rollers supporting the conveyer, pulleys orthe like and driving each of said pulleys by meansof an endless cabl e,belt or the like. In carrying the invention into practice, in the preferred form of my invention each of the cylinders or rollers is'providedon its shaft with a pulley, the periphery of which is engaged by a belt, cable or rope passed around pulleys at the loading and the discharging ends of the conveyer, other pulleys are provided at convenient points which can be adjusted to regulate the tension and are in contact with the pulleys of the rope, belt orcable. Suitable 5 guides areprovided for the rope, belt or cable these guides haver'eadily movable outer portions to enablethe rope, belt or cable to be entirely removed when necessary. In order that my invention may be clearly understood-and readily carriedinto v effect, I haveappended hereto three sheets of drawings diagrammatically illustrating an embodiment of same andwherein Fig. 4. to a larger scale,

showing the arrangement of the cable guides,

rollers and pulleys and This 7 This is effected-by means of my inof my invention. 1

Fig. 1 is a transverse part sectional view 3 F ig.-7 shows diagrammatically a modified method of varying the tension of the driving cable or belt.

, Referring to the drawings, more particularlyFig. 1, the rollers 1 and the rollers 2 are arrangedinsets each respectively supporting the top and lower portions of t e conveyer 3, which is an endless chain, belt or other suitablestructure,passed around a large primary roller 4 (see Fig. 4) and a ten- 5 constituting the limits I sion adjusting roller of travel of the conveyer 3. The upper and lower sets of rollers 1 and 2are mounted in,

any suitable known manner in bearings 6 supported by girders 7 extending along the working accommodating the conveyer. I do not propose to enter into a detailed descrip in accordance with known practice, or may be constructed in any other suitable manner without departing from the spirit and scope The embodiment of my invention illustrated consists'in employing an endless cable or its equivalent 8, passed'around pulleys 4 and5 mounted on the shafts of the'inain rollers 4 and 5 hereinbefore referred to. This.

cable or its equivalent 8 is endless 'and'will drive the conveyer at both ends, and also isadapted to assist the rotation of the rollers l and 2 so that the loads carried by the con veyer 3 are assisted at all points of support to keep 1t from slipping from position, and. of the conveyer 3. This is preferably ef-v fected by mounting upon the shaft 1 and 2 of the rollers land 2,.grooved pulleys 9, the 7 upper set of pulleys supporting at the upper parts of their peripheries, the upper partof the cable 8, and the corresponding parts of the lower pulleys 9 supporting the lower part of the cable 8. If the cable 8 is maintained sufliciently taut, the rollers 1 and 2 will be rotated in such manner as to assist the conveyer 3 in its travel instead of merely supporting the conveyer3 as in present practice.

To ensure the requisite tautness and con- I tact of thecable 8 a suitable number of adpulleys 10 are supported along the at convenient points and provided them in suitable justable girders 7 with means for adjustin planes. In Figs. 2 and 3,

able form of pulley for this purpose, in which each pulley issup through which is t readed an elevating screw have shown a suitrted upon a stub axle 11 12 mounted foraxial rotation across the horizontal limb of" the girder 7, the axle ll having a yoke shaped inner end 11'" engaging the vertical limb of the girder 7,, sotha-t the stub: axle can be moved by axial rotation, of the screW 12, upwards r down-Ward's The ad:- justing pulleys are preferably interposed betxveeirthe upper and lower pulleys 9 sothat in order to increase the tautness and con tact of the cable 8 the pulleys 10 Will be adjuste'd downwards; Similar adjusting pulleys 10 Will be applied to the upper portion of the'caiblewhenandasrequired. I

The adjustment for tau-these of the con: veye'r 3- as Well as'the' c able'S can he obtainedby' meansof a traversing screw 13 arranged horizontally in hearingsat the end of the girder 7' (see Figs; tandt): Axial movement of this sores/ 1 3 will move a channel shaped support. 141 en'dwise along the girder 7', this support 14' carrying the bearings 15 of the roller 0. This adjustingfgearis pref? erabl y" duplicated as shown in Fig 5, so that an: equal adjustment maybe applied to both sides of; the conveyer simultaneously; A further small adjustment can he given either or both si de's hy' means of right and left hand turnbu'cltl'es: Alternatively, only one traversscreW 1*3 may he" einpioyecl common to a pairof supports 14. Suitable reduction gear 16' may be employed for rotatingthe screws 13 by means of swaps" or ratchet.

't' is preferred for the purpose of safety to guide the cable 8 through a suitable number of guides 17', each ofwhi'ch' consists'ofa metal bracket 17 secured at its lower end 17 to the girder 7 ('see Fig 1) andhaving'its uppenend cranked as at 17, said upper end 17 supporting the upper end of a depending arm 18 pivotally supported asat 19 bytl'ie cranked outer end of a bracket secured to" the girder"Z. The upper end of this arnr 18 has provided a slot18' (Fig: 6) engaged'over a pin carried by the: upperen'd of'themember 17', said: pin 21 if desired, having a' nut threading on to it. By employing guides" of this type, the arms 18-- can be readily swung so to expose the cahle' 8- to enable it to be easily removed when desired.

In Fig. 7, is showndiagrammati cally how the tension of the driving'cable 8 can be adjusted from a common source, which can e" an alternative or additional ClBVlCQ to the tension adjusting means already described.

In this arrangement a: cable or rope Wheel 8- is' carried hya bogie frame 22 which can" be; moved and secured any distance, per iss-lhle by the cable 8-, from the conveyer and can lie The cable 8" is passed around the Wheel 8 and anchored between the roof and floor.

symmetrically extended over a pair of rope Wheels 8 carried by a frame 23 secured adjacent the con-veyer, the cable 8- heing carried from the wheels 8 around the pulleys 9.

By means of my invention, the life and adjusting rollers, an endless driving mem= r her passed round said pulleys and engaged a-gat'm'stthe upper sides of the-peripheries of pulleys on the shafts of theisaid driven roll ers, guardsfur' retaining the endlessdriving members in the plane containing'said pulleys, and a number of tension pulleyspressing"said endless driving" member downwards:

2. In an endless conveyer thecomhination of a' primary roller at oneend and a tension adjusting rol ler at the other end, a longitudina'l frame, a set of driven rollerssupported across said frame parallel with and supportmg thelower part of said conveyor, pulleys on the shaftsof the primary and tension lard--- justing" rollers, an endless driv-in 'menrrher passed round said pulleys engaged against the upper sides of the peripheries" of pulleys on'the shafts of the said driven roll ers, pairs of uertical guides' hetween which said endless driving memheri is passed to-= maintain it in the plane containing" said pulleys, screw adjusted tension pulleys pressing said: endless" driving member downwards against the: upper sides of the pulley of thelower set of driven rollers, vand screw means for adj Listing the tension ofthe conveyor:

3". In an endless conveyor, the conubinatron of' a primary rollerat one end and tensionad usting roller at the otherend, a Ion'gitudi nal frame, a set of drivenrollers supported;

across said frame parallel with and support. ing the lower part oi said conveyer, pulleyson the shafts of the priinary and tension adjusting rollers, anendless driving-"member passed round said pulleys and engaged against the upper sides of the peripheries of pulleys on the shafts of the? said driven roll?- ers, a plurality of'vertical brackets'eaclr haying spaced from it but. suhstantfally parallel with it a pivoted arm between which armsand brackets theendless drivenmemher passes, and a number of tension pulleys pressingsaid endless driving member downwards.

4. In an endless conveyenthe combination of a primary roller at one end and a tension adjusting rolleratthe other end, W-lblrglfill-Gl-in-a'l frame, a set of drivenrollers supported across said frame parallel with and support against the upper sides of the peripheries of ing said endless driving member downwards I pulleys on the shafts of the said driven rollv against the upper sides of the pulley of the ers, a plurality of Vertical brackets each havlower set of driven rollers, and screw means 1 ing spaced from it but substantially parallel for adjusting the tension of the conveyer.

. with it a pivoted-arm between which arms In witnesshereof I havesigne'd this speciand brackets the endless, driven member fication.

passes, screw adjusted tension pulleys press- EDWARD TAYLOR. I I 

